Playtests
September 2010
Playtest: Mantis Comfort Synthetic
Mantis is a relative newcomer to the string business, but the team behind it has a wealth of experience within the tennis industry. With headquarters in the UK, Mantis has just entered the U.S. market with four strings, one... (Click here to read more...)
August 2010
Playtest: Luxilon Adrenaline 16L
The Adrenaline line of strings uses Luxilon’s new Liquid Crystalline Polymer (LCP) technology. Luxilon does not divulge much information about its proprietary technologies, but it has told us that LCP is a unique combination of raw materials and processing... (Click here to read more...)
July 2010
Playtest: Solinco Tour Bite
Solinco tells us that Tour Bite is a newly developed, high-performance, and versatile monofilament co-polyester string designed to generate extreme power, and intense spin and bite. According to Solinco, Tour Bite uses an innovative, proprietary composite formula of high-tech... (Click here to read more...)
June 2010
Playtest: Gamma TNT2 Touch
Gamma TNT2 Touch is the first multicore, multi-wrap string energized with the Gamma patented TNT (Thermo Nuclear Technology) process. TNT2 Touch is a premium string that according to Gamma offers amazing feel and power without sacrificing control. Gamma says... (Click here to read more...)
May 2010
Playtest: Wilson Hollow Core Pro
Hollow Core Pro is an innovative nylon and polyester multifilament from Wilson. Instead of a round solid core, Hollow Core Pro has an air-filled, hollow triangle-shaped polyester core. According to Wilson, this hollow core is what gives the string... (Click here to read more...)
April 2010
Playtest: Unique Tourna Quasi-Gut
Tourna Quasi-Gut is an advanced multifilament nylon string meant to play and feel like natural gut, while maintaining better durability. Unique tells us that Tourna Quasi-Gut is constructed from thousands of tightly wound microfibers, each permeated with and contained... (Click here to read more...)
March 2010
Playtest: Pacific Poly Power Pro
Poly Power Pro is a high modulus polyester string manufactured in Germany exclusively by Pacific. In construction, it is essentially a double-coated monofilament. Pacific tells us that the high modulus polymers combined with two layers of a special coating... (Click here to read more...)
February 2010
Playtest: HEAD FXP Power/FXP 17
Head FXP Power/FXP is a hybrid from Head’s Perfect Match Hybrid program. With Head’s unique system and easy-to-follow matrix, the player can find the perfect match for his chosen benefits. The combination of FXP Power and FXP is aimed... (Click here to read more...)
January 2010
Playtest: Luxilon M2 Plus
M2 Plus is a new “multi-mono” from Luxilon that offers the advantages of both multifilament and monofilament strings. Luxilon M2 Plus has dynamic variable flex which reacts to the power of your shots. It acts like a multifilament at... (Click here to read more...)
November 2009
Playtest: HEAD Sonic Pro/FXP Power
HEAD Sonic Pro/FXP Power is another of Head’s pre-selected “Perfect Match” hybrids. “Perfect Match” is a system developed by Head that allows each player easily to select a hybrid combination based on desired primary and secondary string properties. (See... (Click here to read more...)
September 2009
Playtest: Prince Hybrid Power EXP
Prince now combines one-half set of Prince Poly EXP and one-half set of Prince Premier LT as Prince Hybrid Power EXP. This string comes standard in demos of the EXO3 Rebel, EXO3 Rebel Team, EXO3 Ignite, and EXO3 Ignite... (Click here to read more...)
August 2009
Playtest: HEAD Sonic Pro 17/Natural Gut 16
Head Sonic Pro 17/Natural Gut 16 is a “do it yourself” hybrid with a twist: It is one of several hybrids pre-matched by the Head Perfect Match Hybrid program. What Head has done is create a matrix showing the... (Click here to read more...)
July 2009
Playtest: Tecnifibre Black Code 16
Tecnifibre Black Code is a coated monofilament polyester with a pentagonal shape. The monofilament core is a co-polyester, which provides the ultimate in durability, according to Tecnifibre. The polyester coating is said to increase durability and reduce friction burn... (Click here to read more...)
June 2009
Playtest: Gamma TNT2 Tour 16
Gamma TNT2 Tour is a wrapped multi-core multifilament string with a somewhat unusual construction. In the core, a solid high-tenacity polyamide (nylon) outer matrix surrounds six high-energy monofilaments. The outer matrix is stiffer than the individual core monofilaments. Around... (Click here to read more...)
May 2009
Playtest: Luxilon M2 Pro
M2 Pro is a new string in more than one way. First, it is one of the latest offerings from Luxilon. Second, M2 represents a completely new category of string from Luxilon, incorporating a breakthrough in string technology. Third,... (Click here to read more...)
April 2009
Playtest: Wilson Hollow Core 16
Hollow Core is an innovative nylon multifilament from Wilson. Hollow Core is the first string that, instead of a round solid core, has an air-filled, hollow triangle-shaped core. According to Wilson, this hollow core is what gives the string... (Click here to read more...)
March 2009
Playtest: Prince Premier LT
Prince Premier LT is a multifilament that advances the Prince Premier line with new features. The “LT” stands for Linear Technology, a reference to the parallel alignment of the 900+ fibers in the core of Premier LT. Prince tells... (Click here to read more...)
February 2009
Playtest: HEAD ETS 16
Head ETS is a wrapped multifilament nylon string. According to Head, the highly elastic multifilament core moves freely within its unique polypropylene outer wrap, providing optimal elasticity and energy transfer for unprecedented power, playability, and perfect sound. The outer wrap... (Click here to read more...)
January 2009
Playtest: Wilson (K) Gut Pro 16
Wilson (K) Gut Pro is a premium multifilament made of high crystallinity xycro microfibers bonded together with polyurethane. Fluorocarbon (polytetrafluoroethylene) microfibers are interspersed among the xycro microfibers for enhanced performance. According to Wilson, (K) Gut Pro is engineered for... (Click here to read more...)
November 2008
Playtest: Pacific Power Hybrid
Pacific Power Hybrid 16L is a combination of two top-performing Pacific strings: Poly Force 17 (1.24 mm) and Power Line 16L (1.28 mm). According to Pacific, Poly Force is an exclusive German-made high-modulus co-polyester string, and is Pacific’s number... (Click here to read more...)
September 2008
Playtest: Gamma Zo Tour 16
Gamma Zo Tour is a “multifilament” polyester string that is made of six PET (polyethylene terephthalate) monofilaments surrounded by Gamma’s Zo energy core material. Gamma tells us that this unique construction gives Zo Tour a softer, more forgiving feel... (Click here to read more...)
August 2008
Playtest: Prince Recoil
Prince Recoil is a solid core multifilament with some interesting features. The core is advanced thermoplastic for extra feel and comfort. The inner wrap is a new high-tenacity filament, for improved tension memory and better durability due to its... (Click here to read more...)
July 2008
Playtest: Tecnifibre TGV
TGV is a multifilament string from Tecnifibre that is made of bundles of micro fibers, imbued with Polyurethane 400. According to Tecnifibre, the composite micro fiber bundles give TGV its dynamic properties and power. The Polyurethane 400, which makes... (Click here to read more...)
June 2008
Playtest: Pro Supex Matrix Hybrid
Pro Supex Matrix Hybrid is composed of two strings that are designed to offer the best in both durability and playability: Pro Supex Big Ace (mains) and Pro Supex Maxim Touch (crosses). Big Ace is a German-made monofilament co-polymer... (Click here to read more...)
May 2008
Playtest: Tecnifibre Xr3
Xr3 is a multifilament string from Tecnifibre that is made with a core of three composite monofilaments surrounded by six bundles of Elastyl micro fibers, imbued with Polyurethane 400. According to Tecnifibre, the monofilament cores provide a firmer feel, more... (Click here to read more...)
April 2008
Playtest: Luxilon Alu Power Fluoro 123
Alu Power Fluoro is the latest monofilament string from Luxilon. It is based on the original Alu Power 125, which took the pro tour by storm before becoming a favorite with other competitive players. It is created with a... (Click here to read more...)
March 2008
Playtest: Wilson (K) Gut 16
Wilson (K) Gut is a new multifilament nylon-based string. (K) Gut is made up of nylon microfibers augmented by Fluorofiber (individual fibers of 100% fluorocarbon), which Wilson claims give (K) Gut ultimate performance and extra control. The nylon and... (Click here to read more...)
February 2008
Playtest: Wilson Champions Choice
Wilson Champions Choice is a hybrid of two premium strings: Luxilon Alu Power 125 Rough and Wilson Natural. Luxilon Alu Power is a poly-ether-ether material with a textured surface for added spin and control. Wilson Natural is a high... (Click here to read more...)
January 2008
Playtest: Unique Big Hitter Blue 17
Unique Big Hitter Blue is a monofilament string made with polyether. According to Unique, the use of polyether in this advanced German string formulation allows for a much softer string that absorbs shock and increases comfort, while retaining the... (Click here to read more...)
November 2007
Isospeed Professional Classic 17
Isospeed Professional Classic is a coreless multifilament, where the filaments are Isospeed's trademarked polyolefin ribbons. Isospeed tells us that Professional Classic is designed for players looking for gut-like performance in terms of speed and arm protection. Professional Classic is... (Click here to read more...)
September 2007
HEAD C3 Rocket 16
C3 Rocket is a new multifilament control-oriented string from Head. As with several other Head strings, C3 Rocket uses ribbon-shaped strands. These ribbons surround a solid core, but are not bonded to the core. The "C3" stands for Crystal... (Click here to read more...)
August 2007
Gamma Asterisk 16
Asterisk is a nylon string with a center core made up of six large wedge-shaped filaments that are arranged in the shape of an asterisk (hence the name). These fibers are encased in a high tenacity polyamide matrix that... (Click here to read more...)
July 2007
HEAD Sonic Pro 17
Sonic Pro is a new polyester string from Head, the first polyester string it has added to its Control line-up. According to Head, Sonic Pro is a uniquely processed co-polymer polyester with extra combinations of resins and fibers. Head... (Click here to read more...)
June 2007
Isospeed Professional 17
Isospeed Professional is a multifilament string composed of Power Ribbons and polyamid filaments. According to Isospeed, the polyamid filaments are pre-stretched during manufacturing, which helps with tension maintenance. The Power Ribbons are made of a unique polyolefin, which Isospeed... (Click here to read more...)
May 2007
Wilson Super Spin 16
Wilson Super Spin is a hexagonally shaped nylon string with a core consisting of two simultaneously extruded layers. Around the core are wrapped 20 nylon fibers. The hexagonal shape is achieved when the final outer layer is added. According... (Click here to read more...)
April 2007
Pro Supex Big Ace
Big Ace is a monofilament co-polymer, which according to Pro Supex is made of high-grade polymers and special monomix-reinforced chemical additives. Pro Supex claims that Big Ace offers power, spin potential, control, comfort, durability, resistance to movement, and tension... (Click here to read more...)
March 2007
Wilson Ultimate Duo
Ultimate Duo is a hybrid string from Wilson comprised of Luxilon Alu Power and Wilson NXT Tour. This combination builds on Wilson's dominant position in premium-priced synthetic multifilaments (more than 70% of the market) with Luxilon's market-leading position in... (Click here to read more...)
February 2007
Klip Armour Pro 17
Klip Armour Pro is a natural gut string with an unusual feature: The gut is completely coated with a hard shell. Klip says that Armour Pro takes natural gut to the next level, increasing durability and control, while reducing... (Click here to read more...)
January 2007
Prince Synthetic Gut Multifilament 16
Synthetic Gut Multifilament is Prince's latest offering for the player looking for a playable multifilament string with a crisp feel and good durability, at a midrange price. Synthetic Gut Multifilament is available in 16 and 17 in natural only.... (Click here to read more...)
November 2006
Klip Detonator 16
Klip Detonator is another of Klip's many Pro Doubles hybrid string offerings, this one combining Klip's K-Boom poly with its Excellerator nylon. Klip recommends using K-Boom in the mains, and the Excellerator in the crosses. We've published playtest reports... (Click here to read more...)
September 2006
Tecnifibre Pro RedCode 16
Tecnifibre Pro RedCode is a new premium copolymer polyester monofilament string that features an exclusive abrasion-resistant coating and chemical additives that offer a higher level of tension resiliency compared to other polyester strings. Additionally, Tecnifibre's static and dynamic test... (Click here to read more...)
August 2006
Pacific X-Force 18
Pacific X-Force is a "poly-like" monofilament string offering increased power and dampened feel. According to Pacific, although the materials of this string are "in the polyester family," X-Force is not necessarily a polyester string. X-Force is manufactured using a... (Click here to read more...)
July 2006
Head FXP Power 16
FXP Power is a new multifilament designed to build on the success of Head's recently introduced FXP string technology. In the past two quarters (Q4 2005 and Q1 2006), FXP has been number 15 on the best-sellers list in... (Click here to read more...)
June 2006
Wilson Natural 16
Wilson Natural is a 100 percent natural gut string. According to Wilson, it contains the highest quality natural gut fiber with moisture-resistant long-life coating. Wilson tells us that it is the choice of top players such as Roger Federer,... (Click here to read more...)
April 2006
Klip Venom 17
Klip Venom is a high-end multifilament made of DuPont High Modulus PA66 nylon, which is impregnated with polyurethane resin and then twisted with high tenacity monofilament wraps and two polyester metallic yarns. Klip calls these two visible black twists... (Click here to read more...)
March 2006
Playtest: Gamma Zo Pro 16L
Gamma Zo Pro is a hybrid set made up of Zo Power for the mains and Live Wire Professional for the crosses. According to Gamma, Zo Power is an ultra playable 16L-gauge polymer alloy featuring Gamma's TNT2® Technology, for... (Click here to read more...)
February 2006
Playtest: Tecnifibre Multifeel 16
Tecnifibre Multifeel 16 is a solid-core single-wrap multifilament string, which according to Tecnifibre offers durability, dynamic performance, and comfort at an excellent price-to-value ratio. The durability comes from the central monofilament, which comprises 20 percent of the total volume... (Click here to read more...)
January 2006
Playtest: Klip Lightning 16
Lightning is one of Klip's "Pro Doubles" (hybrid) strings, combining its Legend natural gut with its Excellerator nylon. Klip's Legend natural gut is 100 percent Australian top grade gut. Excellerator is a high-end multifilament, with 30 percent more fiber... (Click here to read more...)
November 2005
Playtest: Gamma Zo Sweet 17
Gamma Zo Sweet is a 17-gauge hybrid that combines Gamma's Zo Power coated monofilament polyester in the mains and its TNT² nylon in the crosses. According to Gamma, Zo Power is an ultra-playable polymer alloy, manufactured as a co-extrusion... (Click here to read more...)
September 2005
Playtest: Gosen Polylon SP
Polylon SP (the SP stands for "supreme playability") builds on the successes of Gosen's Polylon and Polylon Comfort strings. (See our playtest report of Polylon Comfort in the June 2003 issue of Racquet Tech magazine.) Unlike the other two... (Click here to read more...)
August 2005
Playtest: HEAD FXP 16
Brand & Model FXP is a new multifilament designed to build on Head's well-established FiberGEL technology. (See the playtest report for Head FiberGel in the September 2002 issue of Racquet Tech magazine, and the playtest report for Head FiberGel Power... (Click here to read more...)
July 2005
Playtest: Unique Tourna Hybrid Poly Gut 16
Tourna Hybrid Poly Gut is a new hybrid string from Unique that combines Unique's Tourna Gut natural gut with its Tourna Poly Big Hitter polyester for the best of both worlds: the power of gut with the durability of... (Click here to read more...)
June 2005
Playtest: Klip Screamer 17
Klip Screamer is one of Klip's "Pro Doubles" (hybrid) strings, this one combining natural gut with Klip Scorcher (see the playtest report for Klip Scorcher in the September 2003 issue of Racquet Tech). Klip Scorcher is a solid-core multiwrap... (Click here to read more...)
May 2005
Playtest: Wilson Reaction 16
Reaction is a new multifilament string that Wilson is aiming at competition players and big hitters who are looking for a firm, crisp string that offers control and good tension maintenance. Reaction is constructed from pre-stretched thermoset microfibers with... (Click here to read more...)
April 2005
Playtest: Volkl V-Rex
V-Rex is a new monofilament polyester string from Völkl. According to Völkl, V-Rex is a unique co-polyester developed specifically for today's serious aggressive player who demands precise control and reliable durability. Due to a patented manufacturing process, Völkl says... (Click here to read more...)
March 2005
Playtest: Toalson Cyber Blade Tour Thermaxe 123
Toalson Cyber Blade Tour Thermaxe 123 is a new monofilament developed for tournament players based on the opinions and experience of Toalson contract players worldwide. According to Toalson, Thermaxe 123 affords an excellent combination of elasticity and durability by... (Click here to read more...)
February 2005
Playtest: Gamma Revelation 16
Gamma Revelation is a new multi-core, multi-wrap string formulated for players who want to use a multifilament string and are looking for the greater control that comes from a stiffer string. Revelation is available in 16 and 17 gauge... (Click here to read more...)
January 2005
Playtest: Prince Lightning Power
Lightning Power is Prince's new solid-core/multi-wrap string in its all-around performance category. Prince orients strings in this category toward players who are looking for improved durability, comfort, feel, and spin. Prince feels that Lightning Power is ideal for players... (Click here to read more...)
November 2004
Playtest: Klip X-Plosive
Klip X-Plosive is one of Klip's "Pro Doubles" -- or hybrid -- strings that contain natural gut. In X-Plosive, the other string is Klip's new K-Boom, a co-polymer polyester. Klip claims the fast response time of K-Boom makes it... (Click here to read more...)
October 2004
Playtest: Head MegaBlast
Head MegaBlast is a new high-end racquetball string that comes standard in all Liquidmetal and MegaBlast racquetball racquets. It is the choice of five-time Pro World Champion Sudsy Monchik as well as dozens of top touring professionals. MegaBlast features... (Click here to read more...)
September 2004
Playtest: Volkl F.I.R.E. Strings
Volkl's F.I.R.E. (Fully Integrated Racquet Engineering) Strings is a hybrid comprised of a nylon multifilament and polyester monofilament. According to Volkl, this combination delivers the power and feel of a multifilament with the durability and control of the polyester.... (Click here to read more...)
August 2004
Playtest: Tecnifibre X-One Biphase 17
X-One Biphase is a multifilament string constructed using a new variation of the tried-and-true Tecnifibre process. According to Tecnifibre, X-One Biphase combines H2C (High Heat Capacity) microfilaments for power and feel, with NRG microfilaments for dynamic response. These microfilaments... (Click here to read more...)
July 2004
Playtest: Wilson NXT OS 16L
Wilson NXT OS is the newest edition to the NXT family of strings. Wilson tells us it specifically engineered this multifilament, polyurethane-impregnated string for oversize and super oversized rackets. Wilson's goal was for NXT OS to retain tension longer... (Click here to read more...)
May 2004
Playtest: Gamma Zo Plus 16L
BRAND & MODEL Gamma Zo Plus is a co-extrusion fiber, which means it is a monofilament comprised of two materials, one in the center and a second that encases or coats the center filament. In Zo Plus, the center is... (Click here to read more...)
Playtest: Unique Tourna Poly Big Hitter
BRAND & MODEL Unique Tourna Poly Big Hitter is a monofilament "poly" string of the type that is becoming increasingly popular both on the pro circuit and with hard-hitting juniors and even club players. Unique tells us that their... (Click here to read more...)
April 2004
Playtest: HEAD RIP PerfectPower
BRAND & MODEL RIP PerfectPower is the newest string in HEAD's line-up, designed to be their top string for players seeking more power. HEAD's other power strings include IntelliString, RIP Ti.Fiber, and FiberGEL Power. To give players more power, HEAD... (Click here to read more...)
Playtest: Klip Blast
BRAND & MODEL Blast 17 is one of Klip's "Pro Doubles" line of hybrid strings. Blast combines their Hardcore polyester (for the mains) with a soft compound synthetic gut (for the crosses), which according to Klip deliver a unique combination... (Click here to read more...)
March 2004
Playtest: Prince Premier with Softflex 16
Brand & model Prince's new Premier is a multifilament string designed for ultimate gut-like playability. To achieve this goal, Prince wraps its micro-filament core with filament outer wraps made of Softflex, which it tells us is the most elastic material... (Click here to read more...)
Playtest: Unique Tournafiber Irradiated 16
Brand & model Unique's Tournafiber Irradiated is a new and improved version of their multifilament, multi-wrap string, the original of which we playtested in early 2002 (see Racquet Tech magazine, May 2002, for the playtest report). Unique says that the... (Click here to read more...)
February 2004
Playtest: Wilson Stamina 17
BRAND & MODEL Wilson introduced Stamina in 2002 as a durability-oriented synthetic gut in 16 gauge only. Since then, Stamina has become so popular that Wilson now offers it in two additional gauges — 17 and 18 — and... (Click here to read more...)
RSI magazine search
RSI magazine articles
RSI magazine categories
- Ask the Experts
- Associations
- Awards
- Badminton
- Ball Machines
- Balls
- Business/Marketing
- Clothing
- Courts/Lighting
- Education
- Footwear
- Frames
- Grips
- Industry News
- Letters
- Media
- Miscellaneous
- Our Serve
- Peoplewatch
- Playtests
- Racquetball
- Reviews
- Science
- Squash
- Stringing
- Stringing Machines
- Strings
- Tennis
- Tips and Techniques
- Tournaments/Events
- Your Serve
RSI magazine archives
- September 2010
- August 2010
- July 2010
- June 2010
- May 2010
- April 2010
- March 2010
- February 2010
- January 2010
- November 2009
- September 2009
- August 2009
- July 2009
- June 2009
- May 2009
- April 2009
- March 2009
- February 2009
- January 2009
- November 2008
- September 2008
- August 2008
- July 2008
- June 2008
- May 2008
- April 2008
- March 2008
- February 2008
- January 2008
- November 2007
- September 2007
- August 2007
- July 2007
- June 2007
- May 2007
- April 2007
- March 2007
- February 2007
- January 2007
- November 2006
- September 2006
- August 2006
- July 2006
- June 2006
- May 2006
- April 2006
- March 2006
- February 2006
- January 2006
- November 2005
- September 2005
- August 2005
- July 2005
- June 2005
- May 2005
- April 2005
- March 2005
- February 2005
- January 2005
- November 2004
- October 2004
- September 2004
- August 2004
- July 2004
- June 2004
- May 2004
- April 2004
- March 2004
- February 2004

